CN209736670U

CN209736670U - Punching device for automobile battery bracket

Info

Publication number: CN209736670U
Application number: CN201920283344.6U
Authority: CN
Inventors: 应志达; 应伟达; 杨文高; 蒋奎武; 吕立晓
Original assignee: ZHEJIANG HANDA MACHINERY CO Ltd
Current assignee: ZHEJIANG HANDA MACHINERY CO Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2019-12-06
Anticipated expiration: 2029-03-07

Abstract

The utility model discloses a car battery holder perforating device, including punching support, power device and a plurality of drill bit and be used for the anchor clamps of the fixed battery holder of centre gripping, the setting that the support can slide from top to bottom punches is on outside portal frame to the setting is in the top of anchor clamps, power device sets up on the last side of punching the support, and with the drill bit linkage, should detect the support and be close to the drill bit setting to be connected with external control ware, the relative both sides of the support that punches are equipped with the cover and establish the sliding frame on outside portal frame, the rotatable slide roller that is provided with on the inner frame wall of the support one side that punches dorsad of sliding frame, the slide roller offsets with outside portal frame to slide on outside portal frame. The utility model discloses a car battery holder perforating device, through the setting of punching support and a plurality of drill bit, alright realize punching battery holder in step, so great increase punching efficiency.

Description

Punching device for automobile battery bracket

Technical Field

The utility model relates to a perforating device, more specifically the utility model relates to a car battery holder perforating device that says so.

Background

In the production process of new energy vehicles, the chassis processing is very important, and especially for the processing of battery supports on the chassis, the battery of the existing vehicle adopts a mode of connecting a plurality of batteries to realize the effect of a large-capacity battery, so that a plurality of mounting holes are required to be formed on the battery support of the existing new energy vehicle to mount a plurality of batteries, thereby realizing the connection of the plurality of batteries.

However, the punching process for the battery support in the prior art is mainly to punch holes through a drilling machine, the number of the mounting holes of the battery support in the prior art is large, the existing drilling machine can only punch the battery support one by one, so that the mounting holes on the battery support are gradually drilled, however, the mode of punching one by one is low in efficiency, station transfer is needed in the punching process, and in order to guarantee the precision of each hole, the corresponding station transfer precision also has high requirements, so that the punching efficiency of the mounting holes is low, and the problem that the hole positions are not punched correctly easily occurs in the punching process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an efficient punches, and be difficult to appear the hole site and beat askew car battery holder perforating device.

In order to achieve the above purpose, the utility model provides a following technical scheme: a punching device for an automobile battery support comprises a punching support, a power device, a plurality of punching drill bits and a fixture for clamping and fixing the battery support, wherein the punching support can be arranged on an external portal frame in a vertically sliding manner and is arranged above the fixture, the punching drill bits are rotatably arranged on the lower side surface of the punching support and are distributed along the punching holes of the automobile battery support on the lower side surface of the punching support, the power device is arranged on the upper side surface of the punching support and is linked with the punching drill bits to drive the punching drill bits to rotate to punch holes on the automobile battery support, the lower side surface of the punching support is fixedly connected with a detection support, the detection support is close to the punching drill bits and is connected with an external controller to detect whether the punching drill bits are damaged or not and transmit detection data to the external controller, and sliding frames sleeved on the external portal frame are arranged on the two opposite sides of the punching support, and the inner frame wall of one side of the sliding frame, which is back to the punching support, is rotatably provided with a sliding roller, and the sliding roller is abutted against an external portal frame so as to slide on the external portal frame.

As a further improvement, the detection support is including detecting frame and quantity and the sensor of boring bit one-to-one, it is closed frame construction to detect the frame, sets up the inspection hole with the boring bit one-to-one on it, fixing of sensor one-to-one is on the inboard of inspection hole, detects whether boring bit damages through the inspection hole.

As a further improvement, the anchor clamps include anchor clamps base, locating component and adjustment subassembly, locating component is provided with a plurality ofly, sets up respectively on the angle of anchor clamps base for fix a position battery holder's angle, the adjustment subassembly sets up on the anchor clamps base, and with the battery holder linkage, with drive battery holder removal adjustment position.

As a further improvement, the locating component includes locating piece and locating component, the locating piece is fixed on the angle of anchor clamps base, seted up the support inclined plane on one side of locating piece, battery holder places on supporting the inclined plane, the locating component includes briquetting and positioning motor down, positioning motor's fuselage setting is on the position that anchor clamps base is close to the locating piece, the briquetting is rectangular form down, and its one end is fixed in positioning motor's pivot, and when battery holder placed on supporting the inclined plane, the rotatory briquetting was rotatory to battery holder top down in the rotatory drive of positioning motor pivot to offset with battery holder, it is fixed to push down battery holder.

As a further improvement, the adjustment subassembly is including adjustment slide rail, adjustment base and connecting block, the adjustment slide rail is fixed on the anchor clamps base, the setting that the adjustment base can slide is on the adjustment slide rail, the connecting block is fixed on the adjustment base to can dismantle with battery holder and be connected, remove along with the slip of adjustment base with driving battery holder.

As a further improvement of the utility model, the connecting block includes spliced pole and four link blocks, the lower extreme of spliced pole is fixed on the adjustment base, and its upper end is seted up and is criss-cross connection spout, four link block is L type piece, and its one end is as the linkage segment, and another section is the sliding section, the setting that the sliding section can slide is in connecting the spout, and the linkage segment is used for the card to go into the downthehole to battery holder to connect battery holder.

As a further improvement, the section of connecting the spout is "protruding" font, the setting that the sliding section of link block can slide constitutes the passageway of "protruding" font on the last side of "protruding" font and between being connected the spout.

As a further improvement, the section of linkage segment is the quarter circular, and four linkage segments make up into the cylinder, and this cylinder is used for imbedding in battery holder's the round hole to keep away from each other through between four linkage segments and enlarge the diameter, with battery holder interconnect in order to block battery holder's round hole.

As a further improvement, power device includes motor power and transmission gear box, motor power's fuselage is fixed on the last side of punching the support, and in the pivot stretched into the support that punches downwards, cup jointed the gear with transmission gear box meshing on it, the transmission gear box inlays to be established in the support that punches, stretches out the output shaft downwards, the coaxial fixedly connected with axle of punching in the upper end of drill bit, the rotatable setting of axle of punching is on the downside of the support that punches to through linking a coaxial coupling with transmission gear box's output shaft.

As a further improvement, the side of the punching support is provided with an observation hole.

The utility model has the advantages that the power device can synchronously drive the punching drill bits to rotate through the arrangement of the punching support, the power device and the punching drill bits, thereby realizing the synchronous and rapid punching of the battery support at one time, compared with the gantry drilling machine in the prior art, the punching efficiency is greatly improved, and the transfer of stations is not needed in the punching process, thereby greatly increasing the punching accuracy, and through the arrangement of the detection support, whether the punching drill bits are damaged or not can be effectively detected, the punching device can be well maintained, the problem that the punching stations lack the punching caused by the fracture of the punching drill bits is avoided, through the arrangement of the sliding frame and the sliding roller, the stable up-and-down sliding of the punching support on the external gantry frame can be effectively realized, thus the stable and synchronous punching of a plurality of punching drill bits can be realized, the punching efficiency and punching accuracy of the battery bracket are greatly improved.

Drawings

FIG. 1 is an overall structure diagram of the punching device for the automobile battery bracket of the present invention;

FIG. 2 is an overall structural view of the jig of FIG. 1;

Fig. 3 is an overall structural view of the connection block in fig. 2.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1 to 3, the perforating device for the automobile battery support of the embodiment comprises a perforating support 1, a power device 2, a plurality of perforating bits 3 and a fixture 5 for clamping and fixing the battery support, wherein the perforating support 1 can be arranged on an external portal frame in a sliding manner up and down and is arranged above the fixture 5, the plurality of perforating bits 3 are rotatably arranged on the lower side surface of the perforating support 1 and are distributed along the perforating positions of the automobile battery support on the lower side surface of the perforating support, the power device 2 is arranged on the upper side surface of the perforating support 1 and is linked with the perforating bits 3 to drive the perforating bits 3 to rotate to perforate on the automobile battery support, the lower side surface of the perforating support 1 is fixedly connected with a detection support 11, the detection support 11 is arranged close to the perforating bits 3 and is connected with an external controller to detect whether the perforating bits 3 are damaged or not, and transmits the detection data to an external controller, sliding frames 12 sleeved on an external portal frame are arranged at two opposite sides of the punching support 1, a sliding roller 121 is rotatably arranged on the inner frame wall of one side of the sliding frame 12, which is back to the punching support 1, the sliding roller 121 abuts against the external portal frame to slide on the external portal frame, in the process of using the punching device of the embodiment, the punching support 1 is only required to be arranged on the external portal frame in a sliding manner with a power device 2 and a punching drill 3, then the battery support is placed in a fixture 5 and is arranged below the punching support 1, then the punching support 1 slides downwards, the punching drill 3 is driven to descend to abut against the upper side surface of the battery support, then the power device 2 is started, so that the punching drill 3 rotationally drills into the battery support to complete punching of the battery support, then the punching support 1 is lifted, the punching drill bit 3 drilled into the battery support is lifted, so that the punching operation on the battery support is completed, and the effect of multi-station synchronous punching on the battery support can be realized, so compared with a gantry drilling machine in the prior art, the punching efficiency is greatly improved, and the problem of punching deviation caused by station transfer is not easy to occur, two sliding frames 12 are arranged on two opposite sides of the punching support 1, two sliding rollers 121 are rotatably arranged in the sliding frames 12, then a sliding rail is arranged on the inner side surface of the external gantry frame, so that the punching support 1 can slide up and down on the gantry frame in a matching way, a driving motor is arranged at the position of the upper end of the gantry frame, a rotating shaft is coaxially fixed with a lead screw, then the lead screw is in threaded connection with the punching support 1, and the punching position of the automobile battery support in the embodiment is determined by actual conditions, for example, battery holder in this embodiment is frame type structure, need to make a plurality of holes of mutual interval on the frame of frame and be used for installing the battery, consequently, the position of punching this moment is the position of mutual interval on the frame, so adopt arranging drilling bit 3 for the frame-type, alright realize punching the position of punching to battery holder in step, simultaneously at the in-process that punches, the problem of fracture damage appears in certain drilling bit 3 in the conventionality can appear, consequently, through the setting of detection support 11 in this embodiment, alright effectual damage condition that detects drilling bit 3, and then avoid because the unable effectual problem of punching to battery holder that leads to of drilling bit 3 damage.

as a modified specific embodiment, the detecting bracket 11 includes a detecting frame 111 and a number of sensors 112 corresponding to the number of the drill bits 3 one by one, the detecting frame 111 is a closed frame structure, the detection holes 1111 corresponding to the punching drills 3 are formed on the sensor 112, the sensors 112 are fixed on the inner sides of the detection holes 1111 in a one-to-one correspondence manner, whether the punching bit 3 is damaged or not is detected through the detection hole 1111, and the arrangement of the detection frame 111 can provide an installation position of the cabinet sensor 112 on one hand, and can separate the sensor 112 and the punching bit 3 from each other on the other hand, thereby avoiding the problem that the sensor 112 is damaged due to the throwing of the debris on the punching bit 3, by the arrangement of the detection hole 1111, a channel for the sensor 112 to acquire images can be effectively provided, this achieves the effect that the sensor 112 detects whether the drill bit 33 is damaged, and the sensor 112 in this embodiment is an optical sensor.

As a modified specific embodiment, the fixture 5 includes a fixture base 51, a positioning assembly 52 and an adjusting assembly 53, the positioning assembly 52 is provided in plural, and is respectively disposed at the corners of the fixture base 51 for positioning the corners of the battery support, the adjusting assembly 53 is disposed on the fixture base 51 and is linked with the battery support to drive the battery support to move and adjust the position, the battery support can be positioned by the positioning assembly 52, the battery support is prevented from shifting during punching, and the position of the battery support can be adjusted by the adjusting assembly 53, so that the punching position on the battery support can be better opposite to the punching drill 3.

As an improved specific embodiment, the positioning assembly 52 includes a positioning block 521 and a positioning member 522, the positioning block 521 is fixed on a corner of the fixture base 51, a supporting inclined plane is formed on one side of the positioning block 521, the battery holder is placed on the supporting inclined plane, the positioning member 522 includes a lower pressing block 5221 and a positioning motor 5222, a body of the positioning motor 5222 is disposed at a position of the fixture base 51 close to the positioning block 521, the lower pressing block 5221 is long-strip-shaped, one end of the lower pressing block is fixed on a rotating shaft of the positioning motor 5222, when the battery holder is placed on the supporting inclined plane, the rotating shaft of the positioning motor 5222 rotates to drive the lower pressing block 5221 to rotate above the battery holder and abut against the battery holder, the battery holder is pressed and fixed, a supporting force effect provided to the battery holder can be achieved by the positioning inclined plane on the positioning block 521, and a groove structure with inclined groove walls is formed between the plurality of the positioning inclined planes, the battery support is used as the groove bottom of the groove, when the battery support is placed in the groove structure, the side and the lower side of the battery support can be effectively positioned, the pressing action of the pressing block 5221 can be utilized by the pressing block 5221 and the positioning motor 5222, the positioning of the upper side of the battery support is realized, the omnibearing positioning of the side of the battery support is realized, the effect of clamping the battery support is well realized, meanwhile, when the battery supports with different specifications and sizes are punched, the length of the rotating shaft of the positioning motor 5222 only needs to be changed, for example, when a larger battery support is positioned, the battery support is positioned at a higher position, the length of the rotating shaft of the positioning motor 5222 needs to be longer, otherwise, the length of the rotating shaft of the positioning motor 5222 needs to be shorter, wherein the length of the rotating shaft can be realized by arranging a telescopic rod, or the positioning motor 5222 is arranged to be a telescopic motor or an electromagnet to move the lower pressing block 5221 to slide up and down, so that the downward pressing effect on the battery support is kept, compared with the mode of adopting the positioning motor 5222, the installation process is more complicated and difficult, the battery support needs to be gradually plugged into the lower part of the lower pressing block 5221, different positioning motors 5222 are the same and are directly placed on the supporting inclined surface of the positioning block 521, and the battery support has heavier mass, so the mode of positioning the motor 5222 is mainly selected in the embodiment.

As a modified specific embodiment, the adjusting assembly 53 includes an adjusting slide rail 531, an adjusting base 532 and a connecting block 533, the adjusting slide rail 531 is fixed on the fixture base 51, the adjusting base 532 is slidably disposed on the adjusting slide rail 531, the connecting block 533 is fixed on the adjusting base 532 and detachably connected to the battery holder to drive the battery holder to move along with the sliding of the adjusting base 532, and through the arrangement of the connecting block 533, the battery holder can be connected to the battery holder during adjustment and separated from the battery holder after adjustment, so that the position of the battery holder can be adjusted by using the sliding manner of the adjusting base 532 on the adjusting slide rail 531, so that the punching position on the battery holder can be better disposed opposite to the punching drill 3, wherein the connecting block 533 in this embodiment is connected to the battery holder in an embedded manner, namely, the connecting block 533 is embedded into the hole on the battery holder to realize the connection with the battery holder.

As an improved specific embodiment, the connection block 533 includes a connection post 5331 and four connection sliders 5332, the lower end of the connection post 5331 is fixed on the adjustment base 532, the upper end of the connection post is provided with a cross-shaped connection sliding groove 53311, the four connection sliders 5332 are all L-shaped blocks, one section of each of the connection sliders is a connection section, the other section of each of the connection sliders is a sliding section, the sliding section is slidably disposed in the connection sliding groove 53311, the connection section is clamped into a hole of the battery holder to connect the battery holder, the connection block can be used as a base for supporting the battery holder by disposing the connection post 5331, and a slidable fixture block structure can be formed by disposing the connection slider 5332 and the connection sliding groove 53311, so as to connect the battery holder when the position of the battery holder needs to be adjusted, and drive the battery holder to slide and adjust the position.

As an improved specific implementation manner, the cross section of the connecting sliding groove 53311 is in a shape like a Chinese character 'tu', the sliding section of the connecting sliding block 5332 is slidably arranged on the upper side of the shape like the Chinese character 'tu' and forms a channel in the shape like the Chinese character 'tu' between the connecting sliding groove 53311 and the upper side of the shape like the Chinese character 'tu', the channel in the shape like the Chinese character 'tu' is formed by the structure, and the sliding space of the push rod of the power cylinder can be effectively provided for the push rod of the power cylinder by arranging the cylinder body of the power cylinder on the adjusting base 532, so that the push rod extends into the connecting sliding groove 53311 and is fixedly connected with the connecting sliding block 5332, the connecting sliding block 5332 is driven to slide in the connecting sliding groove 53311, and the effect that the connecting sliding block 53.

As an improved specific embodiment, the cross section of the connecting segment is a quarter circle, the four connecting segments are combined into a cylinder, the cylinder is used for being embedded into the round hole of the battery holder and is expanded in diameter by the mutual distance between the four connecting segments to clamp the round hole of the battery holder, and is connected with the battery holder, because the round hole is formed on the battery holder, by setting the cross section of the connecting segment into the quarter circle, when the connecting block 533 is not connected with the battery holder, the four connecting segments can be spliced into a mode that the diameter is smaller than the round hole on the battery holder, so as to realize the separation of the connecting block 533 from the battery holder, and correspondingly, when the connecting block 533 is connected with the battery holder, the four connecting segments only need to be driven by the connected air cylinders to be mutually far away, so that the arc surfaces of the four connecting segments form a circle with a diameter larger than the round hole of the battery, so alright effectual realization connecting block 533 blocks the battery holder, and then realize being connected between the battery holder.

As a modified embodiment, the power device 2 comprises a power motor 21 and a transmission gear box 22, the body of the power motor 21 is fixed on the upper side surface of the punching support 1, the rotating shaft extends downwards into the punching support 1, a gear meshed with the transmission gear box 22 is sleeved on the rotating shaft, the transmission gear box 22 is embedded in the punching support 1, and extends downwards to form an output shaft, the upper end of the punching drill bit 3 is coaxially and fixedly connected with a punching shaft 31, the punching shaft 31 is rotatably arranged on the lower side surface of the punching support 1 and is coaxially connected with the output shaft of the transmission gear box 22 through a connecting shaft, through the arrangement of the transmission gear box 22, the rotating shaft of one power motor 21 can be simultaneously linked with a plurality of punching drill bits 3, so that the number of the power motors 21 can be effectively saved, and through the connection of the output shaft and the punching shaft 1 through the connecting shaft, alright realize transmission between the two, wherein the even axle in this embodiment is threaded connection with the output shaft and the connection between the axle 1 of punching, consequently alright realize controlling through the mode of dismouting even axle whether the drill bit 3 rotates and punches, consequently the drill bit 3 in this embodiment is elasticity scalable, adopt simultaneously to set up the punching plate of a liftable in support 1 below of punching, the dismantled and assembled operation of even axle is realized to the mode of all connecting drill bit 3 and the axle 1 of punching on punching plate, transmission gear box 22 in this embodiment adopts the mode of a plurality of gears and the epaxial gear intermeshing of power motor 21 to realize, output shaft with quantity of dispersion and drill bit 3 equal.

As a specific embodiment of the improvement, the side surface of the punching support 31 is provided with an observation hole, so that it can be observed which output shaft is connected with the punching shaft 31, and which output shaft is not connected with the punching shaft 31, thereby facilitating the adjustment of the punching position.

To sum up, the perforating device of this embodiment through the setting of support 1, power device 2 and a plurality of drill bit 3 of punching, alright realize the multistation to punch in step to battery holder, so great increase punching efficiency.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automobile battery support perforating device which characterized in that: comprises a punching support (1), a power device (2) and a plurality of punching drill bits (3) and a clamp (5) for clamping and fixing a battery support, wherein the punching support (1) can slide up and down and is arranged on an external portal frame and is arranged above the clamp (5), and the punching drill bits (3) are all rotatably arranged on the lower side surface of the punching support (1) and are distributed along the punching holes of the automobile battery support on the lower side surface of the punching support, the power device (2) is arranged on the upper side surface of the punching support (1) and is linked with the punching drill bits (3) to drive the punching drill bits (3) to rotate to punch on the automobile battery support, the lower side surface of the punching support (1) is fixedly connected with a detection support (11), the detection support (11) is close to the punching drill bits (3) and is connected with an external controller to detect whether the punching drill bits (3) are damaged or not, and transmitting detection data to an external controller, wherein sliding frames (12) sleeved on an external portal frame are arranged on two opposite sides of the punching support (1), a sliding roller (121) is rotatably arranged on the inner frame wall of one side, back to the punching support (1), of each sliding frame (12), and the sliding roller (121) abuts against the external portal frame to slide on the external portal frame.

2. The perforating device for the automobile battery support according to claim 1, characterized in that: detect support (11) including detecting frame (111) and quantity and sensor (112) of punch bit (3) one-to-one, detect frame (111) and be closed frame construction, set up on it with punch bit (3) one-to-one detection hole (1111), sensor (112) one-to-one fixes on the inboard of detection hole (1111), detects whether punch bit (3) damage through detection hole (1111).

3. The perforating device for the automobile battery support according to claim 1 or 2, characterized in that: anchor clamps (5) are including anchor clamps base (51), locating component (52) and adjustment subassembly (53), locating component (52) are provided with a plurality ofly, set up respectively on the angle of anchor clamps base (51) for fix a position battery support's angle, adjustment subassembly (53) set up on anchor clamps base (51) to with the battery support linkage, in order to drive battery support removal adjustment position.

4. The perforating device for the automobile battery support according to claim 3, characterized in that: locating component (52) are including locating piece (521) and locating member (522), locating piece (521) are fixed on the angle of anchor clamps base (51), the support inclined plane has been seted up on one side of locating piece (521), and battery holder places on supporting the inclined plane, locating member (522) are including briquetting (5221) and positioning motor (5222) down, the fuselage setting of positioning motor (5222) is on anchor clamps base (51) are close to the position of locating piece (521), briquetting (5221) are rectangular form down, and its one end is fixed in the pivot of positioning motor (5222), and when battery holder placed on supporting the inclined plane, rotatory to battery holder top of briquetting (5221) under the rotatory drive of positioning motor (5222) pivot to offset with battery holder, push down fixedly battery holder.

5. The perforating device for the automobile battery support according to claim 4, characterized in that: the adjusting component (53) comprises an adjusting slide rail (531), an adjusting base (532) and a connecting block (533), the adjusting slide rail (531) is fixed on the clamp base (51), the adjusting base (532) can be arranged on the adjusting slide rail (531) in a sliding manner, and the connecting block (533) is fixed on the adjusting base (532) and is detachably connected with the battery support so as to drive the battery support to move along with the sliding of the adjusting base (532).

6. The perforating device for the automobile battery support according to claim 5, characterized in that: connecting block (533) include spliced pole (5331) and four link blocks (5332), the lower extreme of spliced pole (5331) is fixed on adjustment base (532), and its upper end is seted up and is criss-cross connection spout (53311), four link blocks (5332) are L type piece, and its one section is as the linkage segment, and another section is the sliding section, the setting that the sliding section can slide is in connecting spout (53311), and the linkage segment is used for going into the downthehole of going into battery holder to connect battery holder.

7. The perforating device for the automobile battery support according to claim 6, characterized in that: the section of the connecting sliding groove (53311) is in a convex shape, and the sliding section of the connecting sliding block (5332) is arranged on the upper side of the convex shape in a sliding manner and forms a convex channel with the connecting sliding groove (53311).

8. The perforating device for the automobile battery support according to claim 7, characterized in that: the cross section of the connecting sections is in a quarter circle shape, the four connecting sections are combined into a cylinder, the cylinder is used for being embedded into a round hole of the battery support, the diameter is enlarged through mutual distance among the four connecting sections, and the round hole of the battery support is clamped and is connected with the battery support.

9. The perforating device for the automobile battery support according to claim 1 or 2, characterized in that: power device (2) include power motor (21) and transmission gear case (22), the fuselage of power motor (21) is fixed on the last side of punching support (1), and the pivot stretches into downwards in punching support (1), cup jointed the gear with transmission gear case (22) meshing on it, transmission gear case (22) inlay to be established in punching support (1), stretch out the output shaft downwards, the coaxial fixedly connected with of upper end of drill bit (3) punches axle (31), the rotatable setting of punching axle (31) is on the downside of punching support (1) to through linking a coaxial coupling with the output shaft of transmission gear case (22).

10. the perforating device for the automobile battery support according to claim 9, characterized in that: the side surface of the punching support (1) is provided with an observation hole.